"About a month ago, when it was clear that Warren had little chance to win, one such person said they put out feelers to Sanders’ operation in an attempt to start a running conversation. They showed little interest, the person said, in reciprocating."

"[S]enior aides had been pushing Sanders for months to go harder on Biden.
The problem: Sanders actually liked him.... [Biden] falls into an exclusive category for the Vermont senator: the people who were nice to Sanders before he mattered."
buzzfeednews.com/article/rubycr…pic.twitter.com/9069GPsMcd

So, so many new details in this @rubycramer piece on this past week of Bernie's campaign, including that he really likes Biden, and has been resistant to attack him. David Sirota sent an email to Sanders recently imploring Sanders to go hard after Biden

'The problem: Sanders actually [likes Biden]... Back in January, it was the candidate’s decision to personally apologize to Biden after one of his surrogates, Zephyr Teachout, wrote an op-ed about Biden’s “corruption problem.”'

“He was never able to expand his coalition,” said Mark 'Longabaugh, a top adviser who split with the campaign early last year over strategic disagreements with [Sanders]. “He just didn’t succeed at it.”' buzzfeednews.com/article/rubycr… via @rubycramer